【SpringBoot】基本使用（二）：集成其他框架及组件

古城微笑少年丶 2022-12-27 11:12 125阅读 0赞

SpringBoot 集成别的框架或者组件（Springmvc，mybatis，redis，rabbitmq等）都很简单方便，因为只有两步：

1.  引入依赖
2.  在配置文件 application.properties(yml) 配置核心参数

### 1.集成 Springmvc ###

<dependencies>  
        <dependency>  
            <groupId>org.springframework.boot</groupId>  
            <artifactId>spring-boot-starter-web</artifactId> 
        </dependency> 
    </dependencies>

Springmvc 其实没什么配置，像ViewResolver，View等Bean已经自动装配好了。

### 2.集成 Mybatis ###

<dependency>
        <groupId>org.mybatis.spring.boot</groupId>
        <artifactId>mybatis-spring-boot-starter</artifactId>
        <version>1.2.0</version>
    </dependency>
    
    
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.38</version>
    </dependency>

spring.datasource.driverClassName=com.mysql.jdbc.Driver
    spring.datasource.url=jdbc:mysql://127.0.0.1:3306/demo?serverTimezone=GMT%2B8
    spring.datasource.username=root
    spring.datasource.password=123456
    # mapper文件
    mybatis.mapperLocations=classpath:mapping/*.xml

> 注：若没有指定数据源，需要在启动类上加@SpringBootApplication(exclude= \{DataSourceAutoConfiguration.class\})让数据源不要自动装配

### 3.集成 Redis ###

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>

# Redis数据库索引（默认为0）
    spring.redis.database=0
    # Redis服务器地址
    spring.redis.host=127.0.0.1
    # Redis服务器连接端口
    spring.redis.port=6379
    # Redis服务器连接密码（默认为空）
    spring.redis.password=
    # 连接超时时间（毫秒）
    spring.redis.timeout=5000

测试

@SpringBootTest(classes = {
        App.class})
    @RunWith(SpringRunner.class)
    public class SpringRedisTest {
        
    
        @Resource
        private RedisTemplate<String,String> redisTemplate;
    
        @Test
        public void testRedis() throws Exception {
        
            ValueOperations<String, String> ops = redisTemplate.opsForValue();
            ops.set("name", "enjoy");
            String value = ops.get("name");
            System.out.println(value);
      }
    }

### 4.集成日志（logback） ###

使用其余日志组件，如logback，slf4j等直接在resource下放置相应名的配置文件（logback.xml) 即可

> 注：SpringBoot已经默认集成了 Logback
> 
>  *  [【Java杂记】日志：Java日志体系，从应用场景到发展历史][Java_Java]
>  *  [【Spring】日志：使用 spring 时日志的多种选择][Spring_ spring]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzkzNTkyNw_size_16_color_FFFFFF_t_70_pic_center][]

下面是 logback.xml 的一个配置示例：

<?xml version="1.0" encoding="UTF-8"?>
    <configuration debug="false">
    
        <property name="PROJECT" value="mysb1" />
        
        <property name="ROOT" value="d:/logs/${PROJECT}/" />
        
        <property name="FILESIZE" value="50MB" />
        
        <property name="MAXHISTORY" value="100" />
        <timestamp key="DATETIME" datePattern="yyyy-MM-dd HH:mm:ss" />
        
        <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n
                </pattern>
            </encoder>
        </appender>
        
        
        
        <appender name="ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                
                <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n
                </pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>ERROR</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                
                <fileNamePattern>${ROOT}%d/error.%i.log</fileNamePattern>
                
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n
                </pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>WARN</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/warn.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <appender name="INFO" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n
                </pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>INFO</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/info.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n
                </pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>DEBUG</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/debug.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <appender name="TRACE" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <encoder charset="utf-8">
                <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n
                </pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>TRACE</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
            <rollingPolicy
                class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${ROOT}%d/trace.%i.log</fileNamePattern>
                <maxHistory>${MAXHISTORY}</maxHistory>
                <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>${FILESIZE}</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
            </rollingPolicy>
        </appender>
        
        
        <logger name="org.apache.ibatis" level="INFO" additivity="false" />
        <logger name="org.mybatis.spring" level="INFO" additivity="false" />
        <logger name="com.github.miemiedev.mybatis.paginator" level="INFO" additivity="false" />
        
        
        
        <root level="DEBUG">
            <appender-ref ref="STDOUT" />
            <appender-ref ref="DEBUG" />  
            <appender-ref ref="ERROR" />
            <appender-ref ref="WARN" />
            <appender-ref ref="INFO" />
            <appender-ref ref="TRACE" />
        </root>
    </configuration>

### 5.集成 Jsp ###

一般来说springboot不建议直接使用jsp页面，但不排除有些公司的项目依然使用jsp做前端界面。

springboot内置的tomcat并没有集成对jsp的支持，也没有对EL表达式的支持，因此要使用jsp应该先把相关的依赖集成进来，在pom文件里面新增

<dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
    </dependency>
    
    
    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
    </dependency>

# 前缀，jsp文件位置
    spring.mvc.view.prefix=/WEB-INF/jsp/
    # 后缀，类型
    spring.mvc.view.suffix=.jsp

测试：

@Controller
    @RequestMapping("/jsp")
    public class JspController {
        
        @RequestMapping("/hi")
        public String sayHello() {
        
            // 这里直接返回index，他就会补全为 /WEB-INF/jsp/index.jsp ，然后返回
            return "index";
        }
    }

在浏览器上输入：localhost:8080/jsp/hi，可以看到JSP页面

### 6.集成模板引擎（thymeleaf） ###

SpringBoot 推荐使用模板引擎来渲染 html，如果你不是历史遗留项目，一定不要使用JSP，常用的模板引擎很多，有freemark,thymeleaf 等，其实都大同小异其中 springboot 强烈推荐的是用 thymeleaf。

1.pom文件种添加thymeleaf的支持，并且删除JSP的支持

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>

> 注：只有导入了 thymeleaf 的依赖才可以通过 Controller 跳转到 templates 中的页面

2.新建html（resource/template），编写Controller

<!DOCTYPE html>
    <html xmlns:th="http://www.w3.org/1999/xhtml">
    <head lang="en">
        <meta charset="UTF-8" />
        <title>enjoy</title>
    </head>
    <body>
    <h1 th:text="${name}"/>
    </body>
    </html>

@Controller
    @RequestMapping("/tpl")
    public class ThymeleafController {
        
        @RequestMapping("/testThymeleaf")
        public String testThymeleaf(ModelMap map) {
        
         // 设置属性
         map.addAttribute("name", "enjoy");
         // testThymeleaf：为模板文件的名称
         // 对应src/main/resources/templates/testThymeleaf.html
         return "testThymeleaf";
         }
    }

[Java_Java]: https://blog.csdn.net/weixin_43935927/article/details/111056307
[Spring_ spring]: https://blog.csdn.net/weixin_43935927/article/details/111056313
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzkzNTkyNw_size_16_color_FFFFFF_t_70_pic_center]: /images/20221120/626efcbbc8c345dba7d74f2bcbb92b29.png